Chapter 16: The Marrows

Objective: Slay the Dragon
This level is deceptively easy, due to the dragon typically not responding to attacks. It does sometimes respond, however; so try to avoid setting units up for getting one shot. However, the dragon will attack you twice on its turn, in addition to the effect on the map.
The dragon is level 30 and can take a few rounds of punishment, so this is a great chance to level some characters: just be sure they can’t be one shot.